replace email processing reactions; update deps

vendor/go.mau.fi/util/dbutil/reflectscan.go

@@ -0,0 +1,30 @@
+// Copyright (c) 2024 Tulir Asokan
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+package dbutil
+
+import (
+	"reflect"
+)
+
+func reflectScan[T any](row Scannable) (*T, error) {
+	t := new(T)
+	val := reflect.ValueOf(t).Elem()
+	fields := reflect.VisibleFields(val.Type())
+	scanInto := make([]any, len(fields))
+	for i, field := range fields {
+		scanInto[i] = val.FieldByIndex(field.Index).Addr().Interface()
+	}
+	err := row.Scan(scanInto...)
+	return t, err
+}
+
+// NewSimpleReflectRowIter creates a new RowIter that uses reflection to scan rows into the given type.
+//
+// This is a simplified implementation that always scans to all struct fields. It does not support any kind of struct tags.
+func NewSimpleReflectRowIter[T any](rows Rows, err error) RowIter[*T] {
+	return ConvertRowFn[*T](reflectScan[T]).NewRowIter(rows, err)
+}